Check Valves and Relief Valves
VACCO Industries
VACCO's flight-qualified check valves and relief valves provide fluid control and system protection for satellite and spacecraft propulsion and fluid systems, including bi-propellant and dual-mode systems.
Typed specifications47 values
Discloses 4 of 8 fields engineers filter by in this category (category median 2).
- Mass
- 20 g datasheet p.1 20 g exact | 170 g V0D10840-01 1/4" low pressure check valve; 0.38 lbm | 136 g V0E10495-01 1/4" series redundant check valve; 0.30 LB | 20 g V1D10856-02 3/8" low pressure check valve
- Max operating pressure (MEOP)
- 37.92 bar datasheet p.1 17.93 bar V0E10495-01 1/4" series redundant check valve; Operating Pres… | 37.92 bar V1D10856-02 3/8" low pressure check valve; Operating Pressure… | 17.24 bar max · V0D10840-01 1/4" low pressure check valve; Operating Pressure…
- Media / propellant
- helium datasheet p.1
- Material (wetted or shell)
- titanium (Ti-6Al-4V) V0D10840-01 1/4" low pressure check valve; features list: All… · datasheet p.3 stainless steel (304L or 316L) V0D10840-01 1/4" low pressure check valve; Stainless Steel Bo… | titanium (Ti-6Al-4V) V0E10495-01 1/4" series redundant check valve; All Titanium B… | titanium (Ti-6Al-4V) V1D10856-02 3/8" low pressure check valve; titanium welded unit
- Operating temperature
- -170–45 °C datasheet p.1 19–120 °C V0D10840-01 1/4" low pressure check valve | 10–170 °C V0E10495-01 1/4" series redundant check valve | -170–45 °C V1D10856-02 3/8" low pressure check valve
- Design lifetime
- 10 years datasheet p.1
- Component
- valve V0D10840-01 1/4" low pressure check valve · datasheet p.3 valve V0E10495-01 1/4" series redundant check valve | valve V1D10856-02 3/8" low pressure check valve
- Valve type
- check valve V0D10840-01 1/4" low pressure check valve · datasheet p.3 check valve V0E10495-01 1/4" series redundant check valve | check valve V1D10856-02 3/8" low pressure check valve
- Filtration rating (absolute)
- 40 µm V0D10840-01 1/4" low pressure check valve; Inlet Filter Rating · datasheet p.3
- Cycle life
- 5 000 V1D10856-02 3/8" low pressure check valve; poppet cycles · datasheet p.1
- Survival temperature
- -40–45 °C V1D10856-02 3/8" low pressure check valve; Non-operating Temp… · datasheet p.1
- Random vibration
- 12.1 g RMS V0D10840-01 1/4" low pressure check valve; Acceptance Level @… · datasheet p.3 17.1 g RMS V0D10840-01 1/4" low pressure check valve; Qualification Leve… | 14.4 g RMS V0E10495-01 1/4" series redundant check valve; Acceptance Lev… | 17.3 g RMS V0E10495-01 1/4" series redundant check valve; Qualification …
- Flight heritage
- Successful Flight Heritage datasheet p.1
- Proof pressure
- 25.86 bar V0D10840-01 1/4" low pressure check valve · datasheet p.3 41.37 bar V0E10495-01 1/4" series redundant check valve | 56.88 bar V1D10856-02 3/8" low pressure check valve
- Burst pressure
- 68.95 bar V0D10840-01 1/4" low pressure check valve · datasheet p.3 110.32 bar V0E10495-01 1/4" series redundant check valve | 75.84 bar V1D10856-02 3/8" low pressure check valve
- Port fitting
- V0E10495-01 1/4" series redundant check valve: 2X Ø .250-.253, .018-.022 WALL datasheet p.5
- External leak rate (as printed)
- V1D10856-02 3/8" low pressure check valve: External <1 X 10-6 sccs GHe; Internal 100 scch GHe @ 5 psid datasheet p.1 V0D10840-01 1/4" low pressure check valve: External <1 X 10-6 sccs GHe; Internal 8.3 X 10-6 sccs GHe | V0E10495-01 1/4" series redundant check valve: Internal @ 2 psid <10 scch GHe; External <1 x 10-6 sccs GHe
- Rated mass flow
- 0.7 mg/s V1D10856-02 3/8" low pressure check valve; GHe · datasheet p.1
- Pressure drop at rated flow
- 0.689 bar V1D10856-02 3/8" low pressure check valve · datasheet p.1 0.276 bar max · V0D10840-01 1/4" low pressure check valve; @ rated flow 1.87 … | 0.303 bar max · V0E10495-01 1/4" series redundant check valve; @ rated flow 2…
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier14 lines, in the manufacturer's own wording
- Configurations
- Single, parallel, and series redundant
- Relief valve type
- Single-seat, non-propulsive
- Flight heritage
- GPS-III, Cygnus, SLS, Boeing HS601/702, SDO, H-ITV
- Operating Pressure
- 550 psia
- Operating Temperature
- -170° to +45° C
- Proof Pressure
- 825 psia
- Burst Pressure
- 1,100 psia
- Flow
- 0.7 grams/second GHe
- Pressure Drop
- 10 psid
- Cracking Pressure
- 7.5 psid
- Reseat Pressure
- 1.0 psid
- External Leakage
- <1 X 10^-6 sccs GHee
- Internal Leakage
- 100 scch GHe @ 5 psid
- Non-operating Temperature
- -40° to +45° C
About
For over 40 years, VACCO check valves and relief valves have provided essential protection to system performance for numerous commercial and scientific satellites. Check valves are available in single, parallel, and series redundant configurations to support varying levels of fluid control redundancy. Relief valves are single-seat, non-propulsive designs that have also been integrated with regulators, supporting human spaceflight applications. VACCO check valves are standard on many leading communication satellite platforms and also support resupply of the International Space Station (ISS) and other science satellites, providing critical fluid control on vehicles such as the OSC Cygnus spacecraft, an unmanned resupply spacecraft developed under NASA’s Commercial Orbital Transportation Services (COTS) project to transport supplies to the ISS. In addition to standard bi-propellant systems, the VACCO check valve is also an essential component in many dual-mode propulsion systems.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.